kammel



July 31, 1945. H. E. KAMMEI. 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 1 y 31, 1945' H. E. KAMMEL MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 2 SNN wiw gi wnu d w w M 6 w s s s I &@ .s m I M M W F 2:25;"; L L SQ: h c. Q m a 15 Sheets-Sheet 5 Ihveh'fik H 6. Kim me} July 31, 1945. H. E. KAMMEL.

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRTTING CALCULATING MACHINES Original Filed May 14, 1954 July 31, 1945- I H. E. KAMMEL, 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 4 y 1945- H. E. KAMMEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 5 Fig.5

July 31, 1945. A MEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1954 15 Sheets-Sheet 6 H. E. KAMMEL July 31, 1945.

2,380,598 MECHANISM, FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPE-WRITING CALCULATING MACHINES l5 Sheets-Sheet '7 Original Filed May 14, 1934 July 31, 1945. H. E. KAMMEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CA CULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 8 July 31, 1945. H. E. KAMMEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1954 15 Sheets-Sheet 9 July 31 1945- I A MEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 1O H. E. KAM MEL 2,380,598

15 Sheets-Sheet 11 Original Filed May 14, 1954 MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES July '31,

M 4* [Mia y July 31, 1945. H. E. KAMMEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES l5 Sheets-Sheet 12 Original Filed May 14, 1934 July 31, 1945. H. KAMMEL MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1934 15 Sheets-Sheet 13 lmen'h I H Mi q MM DMIM 9 #7 July 31, 1945. H. E KAMMEL 2,380,598

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1954 15 Sheets-Sheet 14 y 31, 1945- H. E. KAMMEL. 2,380,

MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWRITING CALCULATING MACHINES Original Filed May 14, 1954 15 Sheets-Sheet l5 Fig 23 Gross Sick flssum Supple" 1761- Sun ofdl Nome [V9 salary Tx/s fund y menIs w salary Suplemenk 0500101. 75 Mai 200- 1000 6.00 9.00 375 0.55 104.300 030* A I W L- N Reading 77,2 of Ty e of Reading Reading Clear 79,00 Col Column. Column. Cale. Calc Cross Cmsssign/mm line 7b1al1'zer 75/0/izer 005x780. (M75110 Tbialrkzer 761a1izer Crass a 7 G 2 81 Q 2. 751511119 I 1103 A/ame, number and monlb have f0 be reg/siered.

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I 9 T6 0.55 A R 189.30 4.30

I 10 T7 104.30 5 E 13253 030 01 I 11 T8 0.50 E 5 Zero {395; 02

010205 W QQi/nm Patented July 31, 1945 MECHANISM FOR CONTROLLING TOTAL AND SUBTOTAL TAKING OPERATIONS FOR TYPEWBITING CALCULATING MA- CHINES Hugo Ernst Klrnmel, Zella-Mehlis, Germany; vested in the Alien Property Custodian Original application May 14, 1984, Serial No. 725.836. Divided and this application July 31, 1988, Serial No. 287,672. In Germany May 15,

21 Claims.

The invention relates to a mechanism for controlling total and subtotal taking operations for typewriting calculating machines of the type exempliiled in my co-pending application Ser. No. 725,636, filed May 14, 1934, now U. 8; Patent No. 2,236,642, issued April 1, 1941, oi which the present application is a division.

Hitherto, such devices had the disadvantage that their whole construction was more or less complicated, since for the withdrawal or the values, members were provided other than those for registration of the values. The devices for this reason were expensive in construction and their operation was unreliable.

One object of this invention is the provision in a typewriting-accounting machine oi the general character of that herein disclosed, of a novel mechanical total printing control mechanism for automatically eiiecting an imprint of the total amount registered on the column register or column registers, or on one or more the crossiooter totalizers, at will, without the use or hand cranks or similar manipulative devices.

Another object is to provide means to enable the typewriting-accounting machine to automatically print a total oi the amount registered on a totalizer and coincidentally clear or return the totalizer wheels to zero seriatim, or to automatically print such amount as a sub-total, that is to say, by restoring the amount onto the totalizer wheels.

A further object is the utilization of the same mechanism to automatically print either a total or a sub-total at will.

Still another object is the provision 01 means 7 controlled by separate keys, to automatically print totals from either the column totaliaers or the crossiooter totalirers, depending upon th key depressed.

A still iurther object is to provide in a typewri-ting-accounting machine wherein the totalizer wheels are reverseiy rotated to zero seriatim automatically in a total printing operation, means operable incident to the total-taking operation whereby to restore to the wheels the amount thus removed, and thus convert the total printed into a sub-total.

Another object is the provision. in a typewriting accounting machine equipped with a column totalizer and with a crossiooter totalizer,- one of which is axially shiitable relatively to the other, or a single sub-total control common to both kinds of totalirers, and eii'ective in connection with the total-taking keys 0! the column and crociooter totalizers. respectively, to transiorm a totalizing and clearing operation on either kind of totalizer, into a sub-totaling operation.

In the drawings, one example of construction 0! the subject of the invention is illustrated as applied to a Mercedes Addelektra typewriting calculating machine;-

Figure 1 shows a treat elevation of the whole typewriting calculating machine.

Figure 2 shows a plan of the machine according to Figure 1.

Figure 3 shows a left-hand side elevation of the machine.

Figure 4 shows a iront elevation of the calculating members together with the calculating segment and a part oi the change-over or state control gear for the cross totalizers. The number typing keys and the letter typing keys are represented in section.

Figure 5 shows a plan of the drive mechanism together with the calculating keys and the drive coupling.

Figure 6 shows a perspective illustration viewed irom the front left-hand side of the machine, of the drive coupling with the coupling setting member, common to all the calculating" -keys,,in which view the individual parts ior the sake oi cleamess are represented as separated from one another.

Figure 7 shows in perspective, details oi. the coupling setting member, the parts 0! which are likewise separated from one another.

Figure 8 shows a perspective illustration 0! the transmission and control mechanisms arranged between the typing and calculating keys. viewed irom the front left-hand side 01' the machine, together with the change-over or state control gear for the column totalizers and a part 0! the change-over or state control gear for the cross totalizers, in which view the individual parts are illustrated as separated irom one another.

Figure 9 shows a perspective illustration 01' a locking mechanism controlled by the column totalizers, viewed irom the front left-hand side of the machine.

Figure 10 shows a perspective illustration 0! a part of the total-taking mechanism for the column totalizers viewed irom the front lefthand side or the machine, together with a part of the change-over or state control mechanism for the column totalizers and the total sign printing mechanism ior indicating totals taken from the column totalizers, in which view the parts are illustrated partially drawn out from one another.

Figures 11 and 12 show detail parts in respect to the column register total-taking mechanism illustrated in Figure 10, in two different positions.

Figure 13 shows a perspective illustration of a part of the total-taking mechanism for the cross totalizers, with the printing mechanism for the sign in addition thereto and a part of the change-over gear including both the driving or master wheels for the cross totalizers, the view being taken from the front left-hand side of the machine and various parts being illustrated drawn out from one another.

Figure 14 shows in perspective the changeover gear for the cross totalizers viewed from the front left-hand side of the machine.

Figure 15 shows in perspective the unlocking mechanisms for the column and cross totalizers, viewed from the front left hand side of the machine.

Figure 16 shows in perspective the control, known in itself, for the coupling arranged be tween both the driving or master wheels of the cross totalizers, viewed from the front left-hand side of the machine.

Figure 17 shows a partial side elevation of the machine viewed from the left-hand side of Figure 1, in which parts of the machine housing are broken away to disclose the mechanisms of the total-taking arrangement for the cross-totalizers, parts being illustrated in section.

Figure 18 shows a perspective arrangement of a column totalizer viewed from the rear, in which view the detail parts are illustrated in a condition separated from one another.

Figure 19 shows a perspective illustration of a locking lever with its locking flap, viewed from the left-hand edge of the rear side of the totalizer.

Figure 20 is a cross-section through a totalizer slightly modified for the present invention in which view for the sake of better apprehension, the individual wheels with their shafts are disposed in one plane.

Figure 21 shows a detail train of denominational gearing in a column totalizer.

Figure 22 shows a perspective illustration of the control mechanism for sub-total taking, viewed from the front left-hand side of the machine.

Figure 23 shows a partially illustrated sheet. filled in with an example illustrating one of the uses to which a machine embodying this invention, may be applied, and

Figure 24 shows in the form of a table, the various operations performed by the machine according to the example illustrated in Figure 23.

In the accomplishment of the foregoing objects. I have adapted the well-known Mercedes Addelektra typewriting-accounting machine to the desired purposes.

In such Mercedes machine, it is old to provide the usual paper carriage with one or more column totalizers or column registers, the denominational wheels of which totalizers are fed one by one into and out of mesh with a column totalizer master wheel.

One or more crossfooter totalizers are slidably mounted on the frame of the machine. with a pick-up bar releasably engageable by the respective column totalizers. to step the denominational wheels of the crossfooter totalizers one by one into and out of engagement with master wheels individual to the respective crossfooter totalizers.

Carriage controlled crossfooter totalizer selecting means is provided to enable either or both crossfooter totalizers to accumulate amounts simultaneously with any one or more of the column totalizers, where more than one cross totalizer is present.

A set of calculating numeral keys are mounted in the frame of the machine to variously limit the excursions of a toothed differential actuator I14 (Fig. 8), normally out of mesh with a drive pinion I59, fast on a differential shaft I58.

A state control reversible gearing is provided near each end of the differential shaft to control the direction of rotation of the column totalizer master wheel I85 (Fig. 8), and of the crossfooter master wheels 362 and 312 (Fig. 16).

Manual control of the state control gearing for the column totalizer master wheel is also provided.

Depression of any calculating numeral key (Fig. 8) not only sets its associated stop in the path of an arm individual to said stop to arrest the differential actuator IId, but also trips a clutch to enable the motor to drive a group of cams, three in the present instance.

One of the cams 69 releases for operation a spring-pressed slide I34 which not only shifts the drive pinion I59 into mesh with the difierential actuator I14 common to all the calculating numeral keys, but also releases certain locks to enable the digit corresponding to the calculating key depressed, to be entered additively or subtractively, in the particular numeral wheel of the column totalizer at that time engaged with the column totalizer master wheel I89. and in either or both of the denominationally corresponding numeral wheels of the crossfooter totalizers QI, Q2 if such crossfooters have been brought into mesh with their respective master wheels, and selected for operation.

A second cam I2 releases a spring-pressed differential slide I10 connected with the differential actuator I14 to rock the latter rearwardly, whereby the drive pinion I59 is rotated to greater or lesser degree depending upon the length of travel permitted the stop arm I29 by its stop III, to effect the entry of the value corresponding to the digit on the depressed calculating numeral key, into the column and crossfooter totalizers.

The differential actuator I14 communicates its differential movement to a sliding bail 206, US, 2I3 to position the latter operatively relatively to the nose of a series of graduated noses mounted on the several numeral printing keys, corresponding in value to the depressed calculating numeral key.

Thereafter, and in timed relation with the differential cam I2, the third cam II releases the differentially positioned bail 206. H6. III! to the action of springs which rock the bail downwardly to depress the selected numeral printing key. whereby the latter engages its corresponding type action with a power drive to effect an imprint of the digit corresponding with the calculating numeral key depressed.

Thereafter, or coincident therewith. the lockus controlling cam 89 restores the several locks to their normal positions and disengages the drive pinion from the differential actuator; the printing control cam II raises the numeral printing key depressing bail and the differential actuator control cam I2 retracts the key depressing bail and the differential actuator to their respective idle positions.

All of the foregoing is illustrated and explained isrlzthe parent application, now Patent No. 2,236,-

The present invention resides in the utilization of the foregoing mechanism, in a typewritingaccounting machine, under the control of certain additional devices, for the automatic, mechanical printing of totals accompanied by a clearing of the totalizer, either column or crossfooter, and for the printing of sub-totals from either the column or crossfooter totalizer, by first clearing such totalizer and then returning the amount thereto.

General machine description The machine housing I (Figures 1 and 3) carries by means of rails 2 and 3 the paper carriage 4, in which a platen 5 (Figure 3) is arranged. To the front side of the paper carriage, there is fixed a supporting rail 1, for carrying the column totalizers T.

To the right-hand side of the paper carriage 4, the carriage release lever 8 (Figure 3) is swingably mounted, and to an extension of this lever a carriage release bar 9, is fixed. ."This bar is rigidly connected at its other side, with a lever l0, pivoted on the left-hand side of the paper carriage, at H.

The carriage release lever 8, release bar 9 and lever l form part of the mechanism for releasing the usual carriage cscapement mechanism in the usual manner, which mechanisms being well known in the art, have not been illustrated in detail and need not be further described.

For line-spacing and for .the return of the paper carriage there is, further, on the carriage 4, a rack [2 (Figures 1 and 3) adjustably mounted by screws |2b engaging with the slots l2a. With the rack l2, engages a toothed wheel l3,'which is pinned on a shaft 14. This shaft is mounted in a stationary bearing [5, and carries a rigidly mounted bevel wheel IE on its lower end, remote from the toothed wheel l3. With the bevel wheel l6, engages a bevel wheel I! (Figure 1) fixed on a shaft l8.

Keyboard mechanism The shaft 18 is rotatably mounted in a bearing wheel 26, is loosely rotatable and axially displaceable on a part 21 (Figure l) of a drive shaft C (Figure 3) which operates the type levers. A co-acting coupling member 21a, having a spur wheel 28, is fixed on the part 21 of the drive shaft C. The shaft C, is rotated in the direction of the arrow a (Figure 3) by means of a worm 29 (Figures 1 and 3) and a worm wheel 30, driven by a motor M arranged on the right-hand side of the machine.

The line spacing and the carriage return are effected by bringing the coupling member 2611 into engagement with the coupling member 21a, by a lever 3|, operated by the right-hand margin stop Mr (Figure 1). Such engagement of said coupling members and operation of said lever 3| operates the hereinbefore described driving train to the gear l3 and the rack l2, to effect line spacing of the platen and the return of the carriage to the right in a manner and by associated means fully described in U. S. patent The intermediate gear 2|, in turn, meshes to Schluns, No. 1,582,788 to which attention is directed. The opening of the coupling, 26a, 21a, is effected by the left-hand margin stop MI, as the paper carriage 4 arrives at its extreme righthand position, to uncouple said coupling members 26a and 21a. The typewriter mechanism proper comprises letter keys 32, number keys 33 and calculating keys 34 (Figs. 1, 2, 3 and 8) mounted upon key levers 36, 35 and 82, respectively. The key levers 35 and 36 rock downwardly around pivot 31 (Fig. 3), against the action of springs 38. The calculating keys 34 act indirectly on the number key levers 35 in a manner and by means described under the headings, "Operation of the calculating mechanism and Operation of the automatic printing mechanism. By means of a pin 40, a driving pawl 4|, is mounted on each of the letter and number printing key levers 35, 36, and this pawl is so acted upon by the tension spring 42, that its lug 43 rests against a nose 44, of a key lever 35, 36. The nose 45, of the driving pawl 4|, engages over a nose 46, of the draw hook 49, jointed to the intermediate lever 41, by a pin 48. A spring tends to rock the draw-hook counter-clockwise against a stop 5|, whereby its normal position is determined.

,1 On the draw-hook 49, the control tooth 490, provided with two teeth 49a and 49b, is rotatably mounted on the pin 49d. If one of the typing keys, 35 or 36 is depressed, the associated control tooth 49c engages a fluted section of th drive shaft C as described in the patent to Schulze, No. 1,789,661, dated Jan. 20, 1931. The control tooth 490 is first of all rotated slightly and then takes the draw-hook 49 along with it to the right so that the intermediate lever 41 is swung round the shaft 52, in the clockwise direction. Accordingly, the type lever 54, is swun in the anti-clockwise direction round the shaft 55, and strikes against the platen 5.

The spur wheel 28 (Figure l) non-rotatably mounted on the shaft 21 (Figure 1) engages with an intermediate spur wheel 56, rigidly mounted on the shaft 51. The intermediate spur wheel 56, in turn, meshes with the spur wheel 59, rigidly mounted on the shaft 58 (Figures 1, 3, 5, 6 and 17).

The above described mechanisms do not belong to the invention but have been briefly described for the better understanding of the parts to be hereinafter described, belonging to the invention.

Drive ,for the calculating mechanism The calculating mechanism drive shaft 58 (Figures 3, 5, 6), is rotatably mounted in the bearing eye 60, arranged in the right hand side of the machine housing I, and at its opposite end, the part 58a, of the shaft 58, is rotatably mounted in a bearing 6|, fastened by screws 62, to a bridge or cross brace 63 connecting the two side walls, 64 and 65 of the frame I. A fulcrum rod 68, (Figures 3, 5, 6, 8, 9, 10, 13 and 17) is rigidly mounted by set screws 61, screwed into bosses 66 (Figure 5) on the left and right hand side walls 64 and 65 of the machine housing I, and on this rod, members to be hereinafter described, are swingably mounted.

In the bearing eye 6| (Figures 5 and 6), a cam, 69 (Figures 3, 5, 6) is rotatably mounted by the sleeve 69a, rigidly fixed to the cam. The cam 69, is rigidly connected to the cams H and 12, by screws (not illustrated) which pass through holes 10, of the cams. The shaft 58, however, exeicises no control over the cams, since the cams 65, TI and 12, as well as the sleeve, 69a, have greater bores 11 (Fig. 6) than the diameter of the shaft 58. The cams 59, II and I2 are prevented from lateral displacement by contact of the left side 69b, of the cam 69, with the edge 5Ia of the bearing eye 5| and by contact of the right side of the cam 12, with the toothed wheel I3 non-rotatably mounted on the square shaft 58. The toothed wheel I3, participates in the rotation of the square shaft 50, which continually rotates in the arrow direction b (Fig. 6). On the cam I2, a pawl 14 (Figures 5, 6) is displaceably arranged by means, of pins 11 and 18, which engage in parallel elongated slots I5 of the cam I2, the pins 11 being of sufllcient length to pass through elongated slots ll of the cam II, and in elongated slots, (not illustrated) in the cam 59. The pawl H, is acted on continually in the direction of the arrow (Figure 6) by a compression spring 19, which abuts against the pin I8. fixed to the pawl 14, and against the end 12a, of the slot 15, in the cam 12. Moreover, a stud 80 formed on the pawl ll, coacts with a clutch disabling part, to be hereinafter described in detail, by which the tooth "a of the pawl 14, is held out of engagement with the toothed wheel I3. A locking member 8I enages ring grooves (not illustrated) in the ends of the pins 11 and I8 of the pawl I4 which project from the left-hand side of the cam 69, in the manner illustrated in Figure 6, so that the pawl I0 is retained connected with th cams 09, II and I2, and prevented from falling out. It may be remarked at this point that for the whole ten calculating keys 34, only one coupling as just described, is necessary.

A downwardly directed wid projection 225a (Figure 10) of a column register total key 226a is capable of co-acting with one of a series of upwardly bent lugs 91 of a rocking latch bar 98. On the right and left hand ends of the latch bar ",pins 98a (Figures 6 and '7) are formed, one pin being arranged at each end. By means of these pins, the latch bar 99, is swingably mounted on th levers I00 and IOI, rigidly mounted on opposite ends of the shaft 99. The shaft 99, at its right hand side, is rotatably mounted by a set screw I02 (Figure 6) in a bearing member I03, fixed to a bar I05, by screws I00. On the lefthand side of the machine, the shaft 99, is rotatably mounted by a cone bearing I06 (Figure 7 in a bearing member I01, fixed with screws I00, to the bar I05, already mentioned. Th bar I05 is fixed to both side 'walls 64 and 55 0f the machine housing I, by screws I05s (Figure 5) which pass through holes I05a and I05b (Figures 6 and 7) cf the bar I05.

By means of a spring I09 connected to a lug 90b of the latch bar 98, and to a pin 99; (Fig. 3) rigidly fixed to the shaft 99, the latch bar 08, is acted on in the anti-clockwise direction round its pins 99a, so that its upper surface presses upwards against a bent lug I03a (Figure 6) on the bearing block I03, whereby the normal position of the bar 98, is determined.

A key locking bar I I0 (Figures 3, 6,7) is swingably mounted at its opposite ends on the shaft 99, in the manner indicated in Figures 6 and 7. At the right-hand and left-hand ends of the key locking bar I I0, further, p ns IIOa are fixed, with each of which a spring IIOb (in Figure 6 this has not been illustrated for the purpose of rendering other parts visible), engages, which springs are connected to bent lugs I00a or IOIa of the levers I00 and IN. By means of these springs IIOb the key lockin bar 0 is always acted upon round the shaft 99 in the clockwise direction, whereby it; normal position is determined by contact with the pin I00b, riveted to the lever I00, and by contact with the pin IOIb riveted to the lever IOI. The rearwardly bent flange I I0g extending along the upper edge of the locking bar H0, is capable of co-acting with the nose 2261) (Figure 10) formed on the total key lever 226, in a manner to be hereinafter described.

On the shaft 99 (Figures 3, 6, 7), further, a lever III is rigidly mounted, to the free end of which a pin H2 is riveted (in Figure 6 for the sake of illustration the same is indicated in the withdrawn position). The pin II2 of the lever III, co-acts with the fork-shaped end of an arm I I3, of a three-armed lever I I4, swingably mounted on the fulcrum rod 68. The arm IIla of the three-armed lever I I4, co-acts with the stud 00 of the pawl I4, while the arm IIlb, is wiped by the cam I2, in a manner hereinafter described. A spring II5 engages with a pin III, (in Figure 6, the pin I Idf is shown removed from the lever I I4 for purposes of illustration) riveted to the nose II4d (Figure 6) of the three-armed lever I II, the spring at its other end being connected to a pin I I5a (Figure 5) on a stay II5b, fixed to the cross brace 63 and to the cross bar I05. By means of this spring, the three-armed lever II, is acted on in the direction of the arrow m (Figure 6) round the rod 68, in consequence of which the lever III connected to it, the shaft 99, and the levers I00 and IOI pinned to the shaft, the looking bar I I0 and finally the bar 98, are acted upon in the anti-clockwise direction, whereby on the one hand, the upper edge of the lug 981:, under the action of the spring I09, and on the other hand, its edge 98.9 under the action of the spring I I5, contacts with the edge I03g of the lug I030 of the bearing member I03, whereby the normal position of the parts II4, III, 99, I00, IOI, H0 and 98, is determined.

Further, on the fulcrum rod 68, a lever II5 (Figures 3, 6) is swingably mounted, at the free end of which a roller II"! is arranged, capable of co-acting with the cam 69. By means of the spring II9, connected to the pin IIB of the lever H0, and to the cross brace 63, the roller H1, is always maintained in contact with the cam 69.

The lever I20, similarly swingably mounted on the rod 69, is likewise capable of co-acting by its rearwardly directed arm I20a with the cam (39. The spring I23 which connected to the pin HI and to a pin I22 (Figure 3) of the cross bar I05, rocks the lever I20, clockwise round the rod 68, whereby the projection I20b (Figure 6) of this lever contacts with a lip I200, fixed to the locking bar H0, and the normal position of the lever I20 is thereby determined.

A casing I25, I26, (Figs. 1, 3 and 4), for enclosing the calculating mechanism, extends between and is secured to the forward edges of the sides of the machine frame I.

The inner ends of pivot set screws I2I, mounted in the casing side frames I25, support a shaft I29 for rotation.

A shaft 81, (Figs. 3, 4, 6 and 9), parallel with and beneath the shaft I28, is similarly supported on the inner endsof set screws 96 mounted in angle brackets 06a secured to the side frames of the machine.

Carriage-controlled calculating key lock On the shaft 81, (Figure 9) a lever 01a is pinned capable of co-acting by its nose 01b, with the lug 810 of a locking lever 01d pivoted at B'Ie on a supporting member 91f, fastened to the cross bar I05, and which by means of its forkshaped part 81}, embraces the fulcrum 68, and thus supports the same. An upwardly bent arm 81d on the locking lever 81d is fastened to the lower end of a sensing bar 811', guided by a slot and pin connection 81g, 81h, with a fixture 81m. The upper end of the sensing bar 811' carries a setting finger 81a to feel a pin 81k projecting from the lower end of a link .8111, guided on the rear face of the front wall I39, f the calculating casing by a pin and slot connection 810, 81p. At its upper end, the link 8111, is jointed to one arm of a lever 811', rotatable on the pivot 81q (Figure9). The remaining arm of the lever 81r co-acts with a lever 81s, rotatably mounted on the shaft I86 (Figure 8), the nose 815', (Fig. 9), is acted upon by the cams 81f, arranged on the column totalizers.

The lever 81s, moreover, co-acts with a locking lever 81a, mounted on the locking shaft I42, which locking lever is connected with the lever 81s by a spring 8112. If no cam 81t, of a column totalizer lies over the nose 81s of the lever 81s, or if the nose 81s lies in the intermediate space 81t' between adjacent cams 81t, the nose 81s" of the lever 81s, lies in the path of the shoulder 8111 of the lever 8111 under the action of the spring 811 whereby the rest position of the lever 81s is determined. When the lever 81s is in the rest position, the lever 811- is swung in the clockwise direction around the pivot 81q under the action of the spring 8111), which engages with the link 8111. Hereby the lever 81r lies against the nose 81s of the lever 81s whereby the rest posi tion of the parts 811' and 81s is determined.

In this case, also, the lever. 81d is swung by the bar 812', in the anti-clockwise direction against the action of the spring 81m which engages with the lever 81d, and which is weaker than the spring 81w, whereby the lug 810, of the lever 81d, moves in front of the nose 81b, of the lever 81a and prevents the lever 8111 from swinging in the clockwise direction. Similarly, the nose 81d" of the locking lever 81d moves behind the edge 98 of the hook 98" of the latch bar 98, whereby a swinging of the latch bar 98 in the anti-clockwise direction, is prevented.

Automatic lock release mechanism A roller lever I32, is loosely rotatable on the shaft 81 (Figures 6 and 8) and on the free forwardly-directed end of this lever, a roller I33, is mounted capable of co-acting with the cam 69, hereinbefore described. To the roller lever I32, is jointed a draw-bar I34 which. at its upwardly directed free end, is jointed by means of a screw I35 (Figures 3, 4 and 8) to the segment lever I31. loosely rotatable on the locking shaft I42. By means of a spring I M connected with the pin I38. rigidly mounted on the draw-bar I34 and to a pin I40, rigidly mounted on the front wall I39 (Figures 3 and 6) of the calculating casing I26, the draw-bar I34, is acted upon always in the direction of the arrow a (Figures 6 and 8), so that the roller I33. is always maintained in contact with the cam 69.

The locking shaft I42. is .iournaled at its ends on pivot set screws (not illustrated) mounted in the two side walls I25 of the calculating casing I26. To the lever I31. a pin I43, is fixed, which projects through an arcuate slot I44, in a lever I36. rigidly mounted on the locking shaft I42. A spring I45, engages with the pin I43. of the lever I31, the other free end of the spring being connected to a pin I46, fixed to the lever I36,

whereby both levers I36 and I31 are yieldingly connected to one another.

To the lever I36, a connecting member I48. is jointed by a screw I41 and this connecting member is jointed to one arm of an angle lever I50 (Figures 4, 8) by a screw I49. The lever I50 is swingably mounted by a screw I5l, on a bracket I52, fixed by screws I53 (Figure 3) to the front wall I54 of the casing I25, I26. To the remaining arm of the angle lever I50 (Figure 8) is fixed a pin I55, which projects into a ring groove I56, of a sleeve I51, which is axially displaceable on a shaft I58, mounted in any suitable manner in the two side walls I25, of the casing I26. With the sleeve I51, a wheel I59, likewise mounted so as to be axially displaceable on the shaft"158, is in fixed connection. Pins I (Figure 4) are arranged on the toothed wheel I59. and these pins are always in engagement with a claw I6I (Figures 4 and 8) rigidly mounted on the shaft I58. Further, adjacent the opposite face of the claw I6I on the shaft I58, is arranged a toothed wheel I62, the pins I63 of which are likewise in engagement with the claw I6I (Figures 4, 8, 13).

The toothed wheel I62, is rigidly connected to a ring grooved sleeve I64 (Figure 4) arranged so as to be axially displaceable on the shaft I58.

Printer control On the shaft 81 (Figures 4, 6 and 8) there is rigidly mounted a lever I65, on the free downwardly projecting end (Figure 6) of which a roller I66, is arranged, and this roller is capable of co-acting with the cam 1I, hereinbefore described. The lever I65, is, moreover, fixed on the shaft 81, in such a manner that its roller I66, is normally in contact with the cam 1I.

Differential control Besides, on the shaft 81 (Figures 4, 6, 8), a lever I61, is arranged, so as to be loosely rotatable thereon. To the lever I61, a roller I68, is attached, so as to be rotatable, and this roller is capable of co-acting with the cam 12, hereinbefore described, in a manner to be hereinafter described in detail. To the lever I61, a slide I10. is jointed by means of a headed screw I69. By means of a spring I1I, which is connected to a pin I12, arranged on the slide I10 and to a pin I13 (Figure 4) arranged on the front side of the calculating casing, the slide I18. is always acted upon downwards in the arrow direction a, whereby the roller I68 of the lever I61, is always held in contact with the cam 12.

The slide I18 is provided with an elongated angular slot I13ac, formed as shown in Figure 8, into which projects a roller I15 mounted on the calculating sector I14. The calculating sector I14 is arranged so as to be capable of adjustment and of being fixed in position on the shaft I28, by a screw I16a. The upwardly directed part of the calculating sector I14, is provided with teeth I11, with which the main driving wheel I59, hereinbefore described, is capable of being moved into engagement.

The toothed sector I14 (Figures 3, 4, 8) which is actuated on depression of the total key 226a, in a manner to be hereinafter described, transmits the swinging movement corresponding to the value to be cleared, by way of the toothed wheel I59, and shaft I58, to a locking wheel I18 (Figure 8) rigidly mounted on the shaft I58, which locking wheel is always in engagement 

